, consistent with the injuries the doctors foundyesterday.nbcnewspetewilliams reported that the bombs were triggered by a timer as opposed to a remote detonator. we learned this type of bomb is frequently used in afghanistan and iraq, but also recently popped up in the u.s. one of the devices used in the times square attempted bombing was apparently a pressure cooker. now, we are hearing about a press conference at the top of the hour. we'll carry it live for you on nbc 4 and nbcwashington.com. >>> all right, thank you, aaron. >>> and we're finding out more about the victims killed as the identities were revealed. three died yesterday, we now know two names, 29-year-old krystle campbell is one just confirmed to nbc news by her father this afternoon. she was a restaurant manager from medford massachusetts. this other guy, 8 years old, killed while they stood by the finish line. neighbors are haunted by this traged tragedy. >> to know he will never come home, it kept me up. >> martin released a statement, saying the wife and daughter suffered injuries, he asked others to pray for his family.

coverage, "nbcnightlynews" fromboston begins now. >> announcer: "terror in boston." this is "nbc nightly news with brian williams" reporting tonight from boston. >> well, good evening from boston, just a few blocks from where the explosions rocked the finish line at the boston marathon yesterday. it was a shocking event in the life of this city. today receiving, of course, widespread coverage as yet another terrorist incident in our post-9/11 era. here's where the toll stands tonight. three dead, 176 injured, 71 people are still hospitalized. 24 of them in critical condition. among the dead, a boston university grad student, an 8-year-old boy, martin richard, from dorchester and 29-year-old krystle campbell of medford, mass. we learned today the president will be coming here on thursday for an interfaith service. at the white house today flags were at half-staff, and we heard again from the president who, for the first time, used the word "terrorism" to describe what happened here. >> the fbi is investigating it as an act of terrorism. anytime bombs are used to target innocent civilians,

to gribs with a violent attack in the heart of the city. katiedavis,nbcnews, boston.>>> police officers are searching for evidence. here are people who called in to us to report what they saw. >> we saw smoke, people running hysterically. knocking over the barricades to get off the way. >> you don't know what to do but to ex're get out of there. >> a lot of people on the streets crying. there were a lot of people that obviously saw it. there were a lot of people that didn't, and had no idea what was happening. >> a former army medic said he was inside a building near, and the force of the explosion knocked him to the floor. he got to work treating people until paramedics arrived. >> today's tragedy hit hard, a team from newtown wanted to honor victims of the sandy hook shooting. the runners dedicated each of the 26 miles to the 26 victims. there was a moment of silence, and the newtown seal was placed at the 26 mile mark. all of the runners representing newtown were not injuried in the explosions. >> we are hearing the audio calls. jim henley has more on the chaos and the confusion from

to gather the latest information. here is what we know sofar.nbcnewsreporting126 injured 17 believed to be in critical condition. new from overnight police kenned two m questioned two men in a boston suburb. state police did not provide other details. so far, no suspects are in custody. several blocks around the finish line are shut down this morning as investigators search for clues as who was responsible for the attack. federal and local authorities along with national guard assisting to keep the scene secure and interview witnesses. police questioned a man being treated as a boston hospital. but they say he is not a suspect or a person of interest. >> we will find out who did this and why they did this. any groups will feel the full weight obvioustice. >> police want to talk to a man seen leaving the area as well as a person driving a rental truck who tried to enter the area. doogle activated a person finder within hours of yesterday's blast. log onto google/personfinder. >> a resource center has been opened in castle park pla sa to help runners. if you want to get a sense of the

in a boston hospital. >> chrispalone,nbcnewsboston.>> 6:51. time for weather and traffic on the one's. >> tom klerein is here. not too bad a start today. >> we had sunrise at 6:30 and now there is a blanket of clouds coming under the region. we have temperatures in the 50s. there is the sunrise. right now 56 at the airport with a light breeze and mid and upper 50s. as we look at the after noon highs, it is going to be in the 60s and 70s. right near the bay, it will be in the mid 60s. most locations there should make it well into the 70s. the high pollen counts will be in place today and thursday. it will be all the way into the end of the week. we ought to get that pollen watching out. between now and then, highs likelihood of those storms maybe lingering showers cooler weather as we move into the next part of next week. >> good morning. still checking on an earlier car fire past the beltway. shopper four live over the parkway and the beltway. still seeing delays 2.5 miles. approaching the beltway. delays continuing. i-95 a slow trip to the beltway. >> all right. thank you. >> the e

that everybody is out here helping. >> reporter: law enforcement officialstellnbcnewstheybelieve both bombs were hidden in the backpacks like this one on the street. discarded like personal property. they believe the bombs were triggered by a device, like a cell phone. killing three, like 8-year-old martin richard. the people on the streets hope they find the bomber. >> the worst thing, we couldn't find out who did it. that would just say they could get away with this. >> reporter: now people continue to walk around the perimeter, many snapping photos on their cell phones. and police want people who snapped photos yesterday during the race capturing images. if you notice anything suspicious they would like you to share that with the boston police department. live here in boston, i'm shomari stone. >>> all right, the flags are at half staff to honor the victims of the bombing. the flag will remain lowered until april 20th out of respect. and the president will go to boston on thursday, speaking at a service dedicated to those killed or gravely wounded in the bombings. earlier today, the pres

test. >> announcer:fromnbcnews, thisis "today," with kathie lee gifford and hoda kotb. live from studio 1a in rockefelleplaza. >>> all righty, how dare we call tax day monday fun-day. but it is. it's april 15th. glad you're with us, hope you had a wonderful weekend. a very happy birthday to my sister mish. >> oh, today's her birthday? >> it's her birthday today. >> oh, my god. >> who knew? there's my beautiful sister mish. >> so tax day is her birthday? >> yes. >> that is not a great day. >> and i have a friend named michael redmond, it's his birthday too. since you brought him up, i'll wish him well on the northern coast of -- where is he? washington state, i forget. >> did you do your taxes? >> i think so. somebody did. frank said we did. yes. >> i always get panicky around this time. because i got an email -- >> because all your stuff is at the bottom of your purse. you need to give it to somebody long before now. >> you know what i do have? under the bed is a big tupperware where i just dump everything in there and slide it under the bed. >> with the body of jimmy hoffa,

attack in boston continues hereonnews4andonnbcnightlynewswithbrian williams at 7:00. >>> and runners from our area, home and describing the chaos they witnessed. one man was directly across the street. mark segraves has more. >> reporter: well, that is right, for john walls and his family, the boston marathon is an annual tradition. his wife has run it 17 times. he has run it three times and this was going to be their daughter's first boston marathon. he was in the grandstands waiting for them to come across the finish line. when the bomb went off he had his video camera rolling. >> oh, no, get out of the stands, get out of the stands. >> when the second one went off, i thought god, you know, we're going to die here. >> reporter: john walls, along with his wife and daughter returned to the arms of their family today at reagan international. the former journalist says yesterday was like nothing he has ever seen. >> the police are screaming, directing you, telling you leave, leave, leave. >> reporter: as he and his family tried to escape the blast area, walls videot

lighter,nbcnewsterrorismexpert. good morning to you. the key question everyone is waking up with is what is your gut? does this bear the hallmarks of some domestic terrorism or do you suspect it may be an act of international terrorism? >> i know it's not very satisfying but from my experience at the national counterterrorism center, you don't follow your gut. what you actually do is very methodically collect these pieces of evidence, it's the forensic evidence, it's the videotape, it's reporting from the cia and fbi and sources and putting that together. my gut is the person who did this has some connection to boston because they so effectively picked the iconic symbol of patriots day and the finish of the boston marathon. i also don't think we have enough information to point in domestic or international terrorism. you have to be careful speculating what it might be. >> on the one hand you have crude devices and on the other hand a coordinated attack. you can look at points on either side of this. >> although the devices weren't as large as we've seen overseas or what we s